Answers

You need to use the visual editing window, not the code editor. This is because when you first open the page, the XSL templates are not loaded into the code window.

In the visual editor, click on a column header. You can delete it individually if you like. Alternatively, look at the bottom of the screen to see how the tags nest. You should be able to find and delete the tag that contains the entire
row. The tag should be something like <tr.ms-viewheader>. You won't see it in the code view until you start making changes using the visual editor.

For this change, advanced mode shouldn't be necessary, despite my earlier post to that effect.

Open the page containing the webpart in SharePoint Designer. Click the "Advanced Mode" button. Click on a column header. You can delete it individually if you like. Alternatively, look at the bottom of the screen to see how the
tags nest. You should be able to find and delete the tag that contains the entire row. If your webpart is a XsltListViewWebPart, then that tag is probably something like <tr.ms-viewheader>.

You need to use the visual editing window, not the code editor. This is because when you first open the page, the XSL templates are not loaded into the code window.

In the visual editor, click on a column header. You can delete it individually if you like. Alternatively, look at the bottom of the screen to see how the tags nest. You should be able to find and delete the tag that contains the entire
row. The tag should be something like <tr.ms-viewheader>. You won't see it in the code view until you start making changes using the visual editor.

For this change, advanced mode shouldn't be necessary, despite my earlier post to that effect.

I don't have SharePoint Designer available, is there another way? I was able to insert code to remove the header, but it removed it from every webpart on the page - I just want to remove it from a few of the webparts

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